diff --git a/core/grant/service.go b/core/grant/service.go
index 20e8327b3..9ea31a934 100644
--- a/core/grant/service.go
+++ b/core/grant/service.go
@@ -2,8 +2,10 @@ package grant
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"sort"
+	"strings"
 	"time"
 
 	"github.com/go-playground/validator/v10"
@@ -540,6 +542,7 @@ func (s *Service) DormancyCheck(ctx context.Context, criteria domain.DormancyChe
 	s.logger.Info("checking grants dormancy...")
 	var dormantGrants []*domain.Grant
 	var dormantGrantsIDs []string
+	var dormantGrantsByOwner = map[string][]*domain.Grant{}
 	for _, g := range grantsPointer {
 		if len(g.Activities) == 0 {
 			g.ExpirationDateReason = fmt.Sprintf("%s: %s", domain.GrantExpirationReasonDormant, criteria.RetainDuration)
@@ -548,6 +551,8 @@ func (s *Service) DormancyCheck(ctx context.Context, criteria domain.DormancyChe
 
 			dormantGrants = append(dormantGrants, g)
 			dormantGrantsIDs = append(dormantGrantsIDs, g.ID)
+
+			dormantGrantsByOwner[g.Owner] = append(dormantGrantsByOwner[g.Owner], g)
 		}
 	}
 	s.logger.Info(fmt.Sprintf("found %d dormant grants for provider %q", len(dormantGrants), provider.URN), "grant_ids", dormantGrantsIDs)
@@ -560,6 +565,48 @@ func (s *Service) DormancyCheck(ctx context.Context, criteria domain.DormancyChe
 	if err := s.repo.BulkUpsert(ctx, dormantGrants); err != nil {
 		return fmt.Errorf("updating grants expiration date: %w", err)
 	}
+
+	go func() { // send notifications
+		var notifications []domain.Notification
+	prepare_notifications:
+		for owner, grants := range dormantGrantsByOwner {
+			var grantsMap []map[string]interface{}
+			var grantIDs []string
+
+			for _, g := range grants {
+				grantMap, err := structToMap(g)
+				if err != nil {
+					s.logger.Error("failed to convert grant to map", "error", err)
+					continue prepare_notifications
+				}
+				grantsMap = append(grantsMap, grantMap)
+			}
+
+			notifications = append(notifications, domain.Notification{
+				User: owner,
+				Labels: map[string]string{
+					"owner":     owner,
+					"grant_ids": strings.Join(grantIDs, ", "),
+				},
+				Message: domain.NotificationMessage{
+					Type: domain.NotificationTypeUnusedGrant,
+					Variables: map[string]interface{}{
+						"dormant_grants":       grantsMap,
+						"period":               criteria.Period.String(),
+						"retain_duration":      criteria.RetainDuration.String(),
+						"start_date_formatted": startDate.Format("Jan 02, 2006 15:04:05 UTC"),
+					},
+				},
+			})
+		}
+
+		if errs := s.notifier.Notify(notifications); errs != nil {
+			for _, err1 := range errs {
+				s.logger.Error("failed to send notifications", "error", err1.Error())
+			}
+		}
+	}()
+
 	return nil
 }
 
@@ -624,3 +671,20 @@ func getGrantIDs(grants []domain.Grant) []string {
 	}
 	return ids
 }
+
+func structToMap(item interface{}) (map[string]interface{}, error) {
+	result := map[string]interface{}{}
+
+	if item != nil {
+		jsonString, err := json.Marshal(item)
+		if err != nil {
+			return nil, err
+		}
+
+		if err := json.Unmarshal(jsonString, &result); err != nil {
+			return nil, err
+		}
+	}
+
+	return result, nil
+}
diff --git a/domain/notifier.go b/domain/notifier.go
index 8ffa529d5..1aec9efbc 100644
--- a/domain/notifier.go
+++ b/domain/notifier.go
@@ -8,6 +8,7 @@ type NotificationMessages struct {
 	ApproverNotification string `mapstructure:"approver_notification"`
 	OthersAppealApproved string `mapstructure:"others_appeal_approved"`
 	GrantOwnerChanged    string `mapstructure:"grant_owner_changed"`
+	UnusedGrant          string `mapstructure:"unused_grant"`
 }
 
 const (
@@ -18,6 +19,7 @@ const (
 	NotificationTypeAccessRevoked          = "AccessRevoked"
 	NotificationTypeApproverNotification   = "ApproverNotification"
 	NotificationTypeGrantOwnerChanged      = "GrantOwnerChanged"
+	NotificationTypeUnusedGrant            = "UnusedGrant"
 )
 
 type NotificationMessage struct {
diff --git a/jobs/grant_dormancy_check.go b/jobs/grant_dormancy_check.go
index e87b77777..f065048ba 100644
--- a/jobs/grant_dormancy_check.go
+++ b/jobs/grant_dormancy_check.go
@@ -35,6 +35,9 @@ func (h *handler) GrantDormancyCheck(ctx context.Context, c Config) error {
 	}
 
 	for _, p := range providers {
+		if p.URN != "pilotdata-integration-bigquery" {
+			continue
+		}
 		h.logger.Info(fmt.Sprintf("checking dormancy for grants under provider: %q", p.URN))
 		if err := h.grantService.DormancyCheck(ctx, domain.DormancyCheckCriteria{
 			ProviderID:     p.ID,
diff --git a/plugins/notifiers/slack/templates/UnusedGrant.json b/plugins/notifiers/slack/templates/UnusedGrant.json
new file mode 100644
index 000000000..cf6fa7fb8
--- /dev/null
+++ b/plugins/notifiers/slack/templates/UnusedGrant.json
@@ -0,0 +1,9 @@
+[
+  {
+    "type":"section",
+    "text":{
+      "type":"mrkdwn",
+      "text":"We have advanced the expiration date for the following grants due to inactivity since `{{.start_date}}`:{{ range .dormant_grants }}\n>*ID*: `{{.id}}`\n>*Account ID*: `{{.account_id}}`\n>*Resource*: `{{.resource.urn}}` ({{.resource.provider_type}} {{.resource.type}})\n>*Role*: `{{.role}}`\n>*Expiration Date* (new): `{{.expiration_date}}`\n{{end}}"
+    }
+  }
+]
\ No newline at end of file